{"product_id":"square-d-ejb24020-20a-480v-2-pole-bolt-on-circuit-breaker","title":"Square D EJB24020 - 20 A, 480 V, 2-Pole Bolt-On Circuit Breaker | AmpState","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the Square D \u003cstrong\u003eEJB24020\u003c\/strong\u003e — a \u003cstrong\u003e20A\u003c\/strong\u003e, \u003cstrong\u003e480V\u003c\/strong\u003e, \u003cstrong\u003e2-pole bolt-on molded case circuit breaker\u003c\/strong\u003e engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers. Built to handle demanding electrical environments, this breaker combines rugged mounting with precise protection so you can trust your critical circuits stay safe and available.\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eSecure bolt-on mounting\u003c\/strong\u003e provides a rigid, vibration-resistant bus connection that stays engaged even in environments with machinery or movement.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThermal-magnetic trip unit\u003c\/strong\u003e delivers stable, repeatable protection—responding to overloads and short circuits with a predictable trip curve for reliable coordination.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e2-pole design\u003c\/strong\u003e ensures simultaneous disconnection of both conductors, delivering complete protection for 2‑wire or 3‑phase configurations in compatible systems.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003e480V rating\u003c\/strong\u003e makes it suitable for commercial and light industrial electrical distribution, as well as applications requiring robust high-voltage protection.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eOEM-compatible\u003c\/strong\u003e with matching Square D panels and load centers, simplifying replacement and reducing installation friction.\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eVersatile application\u003c\/strong\u003e appropriate for residential, commercial, and light industrial settings that rely on reliable 480V protection for critical circuits.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eTechnical specifications at a glance\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eManufacturer: \u003cstrong\u003eSquare D\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003ePart Number: \u003cstrong\u003eEJB24020\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eType: \u003cstrong\u003eThermal-magnetic molded case circuit breaker\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eAmperage Rating: \u003cstrong\u003e20A\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eVoltage Rating: \u003cstrong\u003e480V\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eNumber of Poles: \u003cstrong\u003e2\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eMounting Style: \u003cstrong\u003eBolt-on\u003c\/strong\u003e\n\u003c\/li\u003e \u003cli\u003eApplication: \u003cstrong\u003eBranch circuit overcurrent and short-circuit protection\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003ePractical use cases and scenarios\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eProtecting critical branch circuits in 480V panelboards and load centers found in commercial facilities, industrial spaces, or electrical rooms.\u003c\/li\u003e \u003cli\u003eReplacing aged or tripped breakers in compatible Square D systems to restore reliable protection without changing the panel layout.\u003c\/li\u003e \u003cli\u003eCoordinating protection for equipment with moderate to high inrush or fault current—thanks to the thermal-magnetic trip that handles both overloads and short circuits.\u003c\/li\u003e \u003cli\u003eSpecifically suited for circuits that operate at higher voltages, ensuring clean, predictable shutoffs that help prevent collateral damage to downstream devices.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this Square D breaker stands out\u003c\/h3\u003e\n\u003cp\u003eBeyond basic specs, the EJB24020 delivers a tangible upside for installers and facilities managers. The \u003cstrong\u003esecure bolt-on mounting\u003c\/strong\u003e minimizes movement and wear on bus connections, a common pain point in vibration-prone environments. The \u003cstrong\u003ethermal-magnetic trip\u003c\/strong\u003e unit provides consistent protection characteristics over time, reducing nuisance trips and helping you maintain uptime on essential circuits. Its \u003cstrong\u003eOEM compatibility\u003c\/strong\u003e means fewer compatibility concerns and faster replacement when you’re updating or expanding a panel or load center.\u003c\/p\u003e \u003cp\u003eDesigned for a range of installation contexts—from residential-adjacent setups to light industrial environments—this 2-pole breaker is the dependable choice when you need precise protection on 480V systems and want assurance that everything remains in sync with your Square D panels and load centers. If you’re building, retrofitting, or maintaining a 480V distribution network, the \u003cstrong\u003eEJB24020\u003c\/strong\u003e offers the right balance of performance, reliability, and ease of integration.\u003c\/p\u003e \u003cp\u003eReady to secure your electrical distribution with exacting protection and a rock-solid fit? Add the Square D \u003cstrong\u003eEJB24020\u003c\/strong\u003e to your panel and experience how precise, durable circuit protection can enhance reliability across your facility.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amp State","offers":[{"title":"Default Title","offer_id":46355207684258,"sku":null,"price":710.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/8094\/6850\/files\/square-d-ejb24020-20-a-480-v-2-pole-bolt-on-circuit-breaker-599.webp?v=1788741366","url":"https:\/\/www.ampstate.com\/products\/square-d-ejb24020-20a-480v-2-pole-bolt-on-circuit-breaker","provider":"Ampstate Electric Corporation","version":"1.0","type":"link"}